[PSJailbreak] PS3 3.5 downgrade..........

From PSJailbreak Website 11-23
As of today we would like to announce a couple huge changes not only to our product but also to the whole community. PS Downgrade is now unlimited... that right.... Update to play original 3.50 with 3D videos and Online play and Downgrade to play homebrew or Other OS.
We would like to announce an official price drop. Our new MSRP is 99$ USD instead of 125$ making it more affordable for everyone. Next, as of today all new hardware shipped will come with PSdowngrade installed free of charge.
Lastly, all existing customers can start receiving the free PS Downgrade as of 29th of November using PS Upgrader available on our downloads page.
Remember that we are the original Jailbreak , the original Downgrade and we will continue to pave the way. By supporting us you are supporting the community and future developements.

目前还是没有确切证据。要是有开源才能足以证明它。